Container



Patented Mar. 22, 1938 UNITED sTATEs PATENT orrlcE CONTAINER Maximilian Paul Link, Los Angeles, Calif.

Application February 15, 1936, Serial No. 64,081

10 Claims.

IThis invention relates to containers and relates more particularly to containers formed of paper, cardboard stock and other fibrous materials. A general object of this invention is to provide an improved inexpensive sealed container.

Another object of this invention is to provide a container formed of paper or other fibrous material and embodying a novel head or closure comprising an inner seal or head that may be lo readily ruptured to permit the removal of the contents and an outer protective head that is removable and capable of replacement to preserve the contents after breaking of the inner head.

l5 .Another object of this invention is to provide a container embodying an inner frangible seal or closure and an outer removable 'cover or head, which container may be readily lled through the bottom after the application of the said head 20 and then fully sealed by applying the bottom closure or head with a simple seaming mechanism.

Another object of this invention is to provide a container of the'character mentioned that may @5 be furnished to the packager with the inner seal or head applied and the outer head or cover applied by partial seaming or final seaming, as desired, and with the bottom head partially seemed to the container body for easy removal to permit filling of the container and following the filling operation the bottom .head may be re-applied and iinally seamed to the container body to completely close and seal the container. Another object of this invention is to provide a container of the character mentioned that is sanitary and that may be fully sealed without permitting particles of adhesive to enter its interior.

Another object of this invention is to provide a 40 container of the character mentioned in which the inner head or frangible seal is pressed against the internal surface of the container body, an end surface of the container and the external surface of the container body and may besecured to the 45 container body at any or all of these surfaces by suitable adhesive.

Another object of this invention is to provide a container of the character mentioned in which 'the inner head or frangible seal is drawn taut 5@ across the interior or opening of the container and is ironed out or smooth at the exterior ci the container.

Another object of this invention is to provide a container of the character mentioned in which 55 the seam Where the inner head or closure and the outer head or cover are secured to the body is small and compact and does not detract from the appearance of the container.

Another object of this invention is to provide a container of the character mentioned in which the application of the heads or closures does not subject the container tube or body to racturlng or distorting forces and may be accomplished without pushing or inserting a die orA block in the container body.

Another object of this invention is to provide a container of the character mentioned in which the label or decorative covering of the container body may cover and conceal the outer iiange of the inner seal or head and may be tightly forced onto the container body by the sealing of the cover or outer head to the body.

Another object of this invention is to provide a container of the character mentioned that is fully sealed to preserve the contents and. that is strong to dependably mthstand .shipping and handling.

The various objects and features of my'A invention will be fully understood from the following detailed description of a typical preferred form and application of vmy invention, throughout which description reference is made to the accompanying drawing, in which:

Fig. l is a perspective view ci a container of the character provided by the invention. Fig. 2 is an enlarged fragmentary longitudinal sectional view of the container taken substantially as indicated by line 2-2 on Fig. l. Fig. 3 is a vertical detailed sectional View of a suitable apparatus for forming and applying the inner head showing the parts in position for the :rst operation. Fig. 4 is a view similar to Fig. 3 showing the positions of the parts following the first operation. Fig. 5 is a :view similar to Fig. 3 showing the parts following the second operation and Fig. 6

vis an enlarged fragmentary longitudinal detailed 40 sectional View of the container seam prior to the curling or seaming of the ring and outer head rim.

The container or the present invention may be designed and formed for containing substances or various characters, for example, the invention may be embodied in containers intended to hold powder, granular substances, pastes, creams; liquids or jellies. In the following detailed disclosure I will describe a typical form of the inven- 5u tion and the manner of forming and applying' its inner and outer closures or heads, it being understood that this description of a typical embodinient of the invention is not to be construed as' limiting or restricting the invention.

The container of the invention illustrated in the drawing comprises, generally, a body I0, a bottom head Il, means I2 securing the bottom head II to the body i8, an inner seal or closure head I3, a top head or protective cover iii Aand means I5 for removably securing the head or cover I4 to the body I0.

'Ihe body I I) is tubular and may be a section or piece of suitable tubular stock. The body I@ may be formed of paper, fiber or other fibrous material or a suitable combination of fibrous materials. The container body I0 may be of any cross sectional configuration. In the particular case illustrated in the drawing the body I0 is cylindrical or round in cross section. The body III may be formed of spirally wound strips of material or may be formed of convolutely wrapped stock. If the contents of the container make it necessary or desirable the internal surface of the body I0 may be treated or coated to be impervious to the contents. The body I 0 is preferably of substantially uniform wall thickness and its ends are preferably fiat and normal.

The bottom closure or head I I is provided to seal off what I will term the lower end or bottom of the body I0. The head II is formed of paper, cardboard, or like fibrous materials or combinations of such materials. The inner surface of the head I I may be coated or treated to be impervious to the containers contents or may be covered with paper or other suita'ble material. The head II is shaped to fit within the body I0 and in the case illustrated is round or disc shaped. In accordance with the invention the head II is provided with an axially or downwardly projecting annular flange I6. The flange I6 may be slightly flared to wedge against the internal surface I'I of the body I 0. A radial or outwardly projecting flange or rim I8 is provided on the flange I6. 'Ihe rim I8 is adapted to bear on the bottom end I9 of the body Ill and is rolled or seamed against the outer surface of the body IIJ as will be hereinafter described. The rim I8 lies in a plane substantially parallel with the plane of the head II prior to the application or seaming of the head to the body III. The flange I6 and its rim I8 are integral with the head I I. In the simple form of the invention illustrated in the drawing the head II is flat, it being obvious that it may be embossed or shaped as desired.

'I'he means I2 for securing the bottom closure or head II to the body IU may be the same as the seam or securing means fully described and claimed in my co-pending application entitled Container, Serial No. 48,846, filed November 8, 1935. The means I2 is such that the head II may be loosely secured to the body I0 before delivery to the packager to permit the easy removal of the head and following the filling of the container the head II may be re-applied and the means I2 seamed by a simple seaming operation to finally seam the head II to the body I0. The means I2 includes a ring 20 formed of metal or the like within the flange I 6 of the head II. The ring 2U is substantially cylindrical and bears against the internal surface of the flange I6. The inner end of the ring may bear on the diaphragm or body of the head II. The ring 20 is shaped and proportioned to evenly engage the internal surface of the ange I6. 'Ihe seaming ring 20 includes a flange 2I at its outer or lower end to engage about or overlie the rim I8. When the ring 20 is assembled on the head I I the flange 2| lies in a plane substantially parallel with the head II and is adapted to engage against the fiat radial rim I8. 'Ihe flange 2I is proportioned to project outwardly beyond the periphery of the rim I 8. The projecting peripheral edge portion of the flange 2I is rolled about the periphery of the rlm I8 to form a lip or projecting portion 22 on the inner side of the rim. The flange 2i and the rim I8 are rolled or bent inwardly so that the projecting portion 22 bears against the exterior of the body I0. When the body I0 is provided with a label or external decorative covering 23 the projecting portion 22 of course engages this cov- S'llg.

The seaming operations bending the rim I8 and the flange 2I inwardly draw the rim I8 tightly against the end I9 of the body III. If desired this seaming of the head II to the body I0 may be completed at the original seaming operation, that is, the flange 2l and the rim I8 may be finally seamed or rolled inwardly so that the portion 22 grips or clamps against the body to secure the bottom head II to the body. In other Instances it may be preferred to only partially roll the flange 2| and the rim I8 inwardly so that the portion 22 removably grips or clamps against the body Il) whereby the head II may be removed from the body for the purpose of filling the container. The body of the ange 2I holds the flange I6 of the head II against the internal surface I'I of the body I0 and the projecting portion 22 rolled inwardly as described above, clamps against the body I0 so that the body wall and the flange I6 are gripped between the ring 20 and the projecting portion 22. The inwardly turned edge 23a of the portion 22 may bite into the rim I8 to securely connect the ring 20 and the head II. It will be apparent that when the head II is partially seamed to the body I0 as described above, and is then removed to permit the filling of the container, that it properly fits the body I0 when re-applied for final securing or seaming to the body.

The inner frangible closure or head I3 seals off the body I0 within or under the cover I4 being in the nature of. a frangible drum or diaphragm closure. The head I3 may be formed of relatively thin paper, transparent paper, cellophane, or combinations of paper and cellophane" or transparent paper. The head I3 may be a single imperforate membrane of paper or "cellophane or it may be a sheet of paper or the like having an opening or window closed by cellophane or transparent paper whereby the contents of the container are visible upon the removal of the cover I4. Where the contents of the container IU are to be comminuted or granulated material the closure or head I3 may be perforated whereby the contents may be sifted through it. It may be desirable to form the head I3 of an inner perforated sheet and an outer imperforate sheet adapted to be torn away to permit the contents of the container to be sifted through the perforated sheet.

Prior to its application to the body III the head I3 may be a simple flat sheet or an assembly of flat sheets. The head I3 is disc shaped and originally of greater diameter than the body I0. When applied to the body III the head I3 is shaped or formed to have a flange 25 bearing against the internal surface I1 of the body, a flange 26 bearing against the end 2l of the body and a flange 28 bearing against the outer surface of the body I0. The major portion or body of the head I3 is spaced inwardly from the end 21 of the body I0 a distance equal to the width of its flange 2F. It is preferred to secure the frangible head I3 to the body I0 by adhesive. In practice any one or all of the flanges 25, 26 and 2d may be secured to the body III by adhesive. It may be preferred to only secure the outer ilange 2t to the body III by adhesive to preclude the possibility of adhesive from contaminating the contents of the container and from falling into the container after it has become dry.

While it is apparent that various means may be employed to assemble the frangible seal or head I3 on the body It I have illustrated one simple mechanism for quickly and effectively forming the head I3 on the body and securing the head to the body with the adhesive. The mechanism illustrated comprises a chuck 3d and a die 3l. The die 3I isixed to a. suitable stationary support 32 and has an annular groove 33 in its upper side. The groove 33 has an upwardly facing shoulder 34 on its inner wall and a cylindrical surface 35 extending' upwardly from the shoulder 3d. A ring 36 is shiftable vertically in the groove 33 between a `position below the shoulder 3d to a position where it projects above the shoulder` 3d. The ring 36 has an internal surface slightly greater than the external surface of the body Ill. Posts yor rods 3l are attached to the ring 36 and are shiftable in openings dt in the die 3E and the support 32. The lower ends of the rods 3l are secured to a ring sla. Rollers 39 are rotatably mounted on the ring dla and operate in a cam race 4ll in a rotatable cam tI. The cam race 43 has spaced elevated portions and as the cam 4I rotates the rollers 39 cooperating with the race 40 cause the ring 36 to be alternately moved up and down.

The seal or head I3 is first positioned on the die 3l as illustrated in Fig. 3 of the drawing. The positioning of the head I3 on the die 3l may be manual or automatic and the outer wall of the groove 33 operates to center or position the head on the die. The container body IIl is arranged on the chuck 3I, as shown. A line of suitable adhesive may be placed on the external surface of. the container body I or on the upper surface of the head I3 adjacent its periphery. If desired or believed necessary the end 2l' and the inner surface I1 may be provided with adhesive to assist in securirig the head I3 to the body. The chuck 30 is moved downwardly so that the end 2l of the body bears downwardly against the head I3 to draw the head between the surface 35 and the internal surface I 'I of the body and between the shoulder 34 and the end 21 of the body as shown in Fig. 4 of the drawing, providing the head I3 with its flanges 25 and 26.

. The cooperation between the rollers 39 and the race 40 then causes the ring 36 to be moved upwardly while the container body I0 is held in position on the die. 'Ihe upward movementof the ring 36 forces or wipes the peripheral portion of the head I3 onto the exterior of the body I0 to form the flange 28. The surface of the ring 3B engaging the head I3 may be suitably rounded to properly form the ilange 28 against the body I0. The ring 36 is preferably heated by an electric heating element of the like to more readily form the flange 28 with a minimum of crinkling and wrinkling. The heated ring 35 also assists in setting or drying the adhesive which secures the 4iiange 26 to the body III.

When the container is to be provided with a label or decorative covering 23 it is desirable to have the flange 28 as smooth and regular. as

possible. Accordingly, a second ring (not shown) may be employed to iron outany wrinkles or irregularities in the flange 28. Following the forming of the flanges 25, 26 and 2B the ring 33 moves downwardly and the chuck 3d moves upwardly allowing the container body with its head I3 to be removed from the chuck. Following the attachment of the frangible seal or head I3 to the body It the protective cover or head I4 may be removably secured to the body.

The cover or head III is removably secured to the body III to protect the irangibleA head I3 and form a convenient cover for the container following the rupturing or opening of the head I3. The head I4 may be similar to the bottom head II. If desired or practical the head Id may be identical with the head II. The head Id may be formed of paper, cardboard stock or combinations of such nbrous materials. The removable head It is generally disc shaped and adapted to lit within the flange 2li of the head I3. .An axially projecting annular dange t@ is provided on the head It and an annular rim III projects outwardly from the ange dll. As originally formed, the rim III is substantially flat and in a plane parallel with the body of the head III.

l The he'ad III is proportioned so that the rim di is adapted to engage the flange 2t and the body or diaphragm of the head It is adapted to have suitable slight clearance with the body of diaphragm of. the irangible head I3, as shown in Figs. 2 and I5 or the drawing. If desired, the body of the head Ill may engage or rest on the body of the frangible head I3. lThe cover or removable head It may be provided with a label or printing and may be embossed or built up by filling or a pad, or the like.: to be of any desired height and shape.

The means I for removably securing the cover or head It to the body III is similar to the above described means I2. The means I5 comprises a ring 42 which may be identical with the ring 2t'. The ring 42 is substantially cylindrical and bears against or fits within the flange 40 of the head I4. The ring l2 includes an outwardly or radially projecting flange 43. The ring d2 is preferably formed of metal or other material capable of being rolled or seamed. 'I'he ange 43 engages on or overlies the rim 4I and is proportioned to project outwardly beyond the periphery of the rim prior to the seaming or forming operation. In seeming the head I4 to the body I0 the projecting peripheral portion of the flange 43 is rolled over the edge portion of the rim 4I as shown in Fig. 6 of the drawing to form a projecting rimer portion 44 which grips the rim. The rim 4I and the flange 43 are then bent or seamed inwardly so that the rim 4I and the curled portion 44 engage or grip the body I0. In the event that a label or decorative covering 23 is provided on the body it is preferably pasted over the ange 28 of the head I3 and the projecting portion 44 and the rim 4I are adapted to grip or engage against the covering 23. In most instances it is preferred to seam the flange 43 and the rim 4I so that the portion 44 and the rim only slightly or partially grip the body I0 whereby the cover or head I4 remains on the body until deliberately removed. 'I'he head I4 may be removed without an implement and may be re-applied to the body without diiculty.

It is believed that the utility and practicability of the container provided by this invention may be readily understood from the foregoing detailed description.- The frangible seal or head I3 may first be applied to the body I0 as described above, and the removable head I4 may be partialiy seamed or secured to the body over the head I3. The lower closure or head II may then be partially seamed to the body I to permit its ready removal. The container is then ready for delivery to the packager and may be easily filled by removing the head I I. Following the filling of the container 'the head II may be re-applied to the container from which it was detached and flnally seamed to the container body whereby the container is tightly sealed to protect its contents. When it is desired to open the container the removable head I4 is readily removable Without the use of an implement. Removal of the head I4 exposes the frangible head I3. If the head I3 is provided with a vision Window or is formed of transparent material the character, quality or color of the contents of the container may be visible through it. If the head I3 is perforate or provided with a perforate element the contents may be readily sifted through it. The head I 3 may be easily broken and torn out to make the interior of the container fully accessible. Following the breaking of the head I3 and the withdrawal of a portion of the contents of the container the head I4 may be re-applied to the body I0 to form a protective closure for the upper end of the container. When the head I3 is torn out the inside diameter of the seam may be increased tending to make the head I4 appear loose fitting. 'I'he curled outer portion 44 of the ring 42, however, bears against the body I0 and holds the head I4 to the body I0 with the desired degree of tightness. The frangible seal or head I3 is inexpensive and may be easily embodied in the container without complicating its formation or construction. The seam at the lines of connection of the heads I3 and I4 with the body I0 is small and compact. The rings 20 and 42 of the securing means add to the strength and durability of the container and may be finished to add to its appearance. If desired the head I4 may be tightly seamed to the body I0 by curling the portion 44 tightly against the body I6. If this is done it may be necessary to employ an opening device to remove the head I4 so that it may be retained as a replaceable cover for the container.

Having described only a typical preferred form and application of my invention, I do not wish to be limited or restricted to the specific details herein set forth, but Wish to reserve to myself any variations or modifications that may appear to those skilled in the art or fall within the scope of the following claims.

Having described my invention, I claim:

1. A container comprising, a body, a frangible inner seal having flanges engaging against the inner and outer surfaces and an end of the body, adhesive sealing at least one of said flanges to the body whereby the seal is independently sealed to the body to close the same, and an outer readily removable head on the body extending over and engaging the seal and seamed to the body for removal independently of the seal.

2. A container comprising, a body, a frangible closure head sealed to and closing the body, the head comprising a flange engaging the internal surface of the body, and a flange engaging the external surface of the body, adhesive securing at least one of said flanges to the body whereby the frangible head is independently sealed to the body', and an outer protective closure for the body arranged over the said head and having parts seamed to grip the body through the medium of said flanges to be removable independently of the said head.

3. A container comprising, a body, a frangible closure head sealed to the body to independently close an end of the same, the head comprising a flange engaging the internal surface of the body, and a flange engaging the external surface of the body, at least one of said flanges being adhesively sealed to the body, an outer protective fibrous closure -arranged over said head and having flanges engaging over the first mentioned flanges, and means frictionally holding the outer closure to the body for manual removal, said means including a metal ring seamed on the flanges oi. said closure.

4. A container comprising, a body, a frangible closure head sealed to and closing the body, the head comprising a flange engaging the internal surface of the body, and a flange adhesively sealed to the external surface of the body, a manually removable outer protective closure arranged over the frangible head and fitted Within the rst mentioned flange, a flange on the said closure, and a metal ring fitted in the said closure and having a flange seamed on the flange of the removable closure frictionally forcing the same against the second mentioned flange to retain the removable closure in place.

5. A container comprising, a body, a frangible closure head independently sealing an end of the body, the head comprising a flange engaging the internal surface of the body, and a flange engaging the external surface of the body, adhesive securing at least one of said flanges to the body. a manually removable protective closure engaging within the first mentioned flange to extend over the frangible head, a flange on the removable closure, and a ring fitted in the removable closure and having a flange seamed on the flange of the removable closure to secure the ring to the removable closure and frictionally holding the flange of the removable closure against the second mentioned flange.

6. A container comprising, a tubular body, a frangible closure head for the body having a flange engaging against the internal surface of the body, a flange engaging against an end of the body,and a flange engaging the exterior of the body, a removable cover having a flange engaging the first mentioned flange, a flange engaging the second mentioned flange, and a flange at the exterior of the third mentioned flange, and means for removably securing the cover to the body comprising a ring engaging the flanges of the cover and having a part turned under the edge of the last mentioned ange of the cover and removably clamping against the third mentioned flange of the closure head. l

'7. A container comprising, a tubular body, a frangible closure head for the body having a flange engaging against the internal surface of the body, a flange engaging against an end of the body and a flange engaging the exterior of the body, a removable cover having a flange engaging the first mentioned flange, a flange engaging the second mentioned flange, and a flange at the exterior of the third mentioned flange, and means for removably securing the cover to the body comprising a ring engaging outwardly against the first mentioned flange of the cover, a flange on the ring bearing against the other flanges of the cover, and a part on the flange of the ring rolled about the edge of the last mentioned flange of the cover to grip the same and removably engage against the third mentioned flange of the closure head.

8. A container comprising, a tubular body, a

lrangble closure head for the body having a flange engaging against the internal surface of the body, a flange engaging against an end of the body and a flange engaging the exterior of the body, a removable cover having a flange engaging the rst mentioned flange, a flange engaging the second mentioned flange, and a iiange at the exterior of the third mentioned fiange, and means for removably securing the cover to the body comprising a metal seam ring engaging the anges of the cover and having a part turned under the edge of the last mentioned iiange of the cover and removably clamping against the third mentioned flange of the closure head.

9. A container comprising, a container body', a frangible inner seal sealed to the body to constitute an independent closure therefor, and a fibrous outer head covering the said seal and par tially seamed to the body to be frictionally engaged with the body at the internal and external surfaces of the same for manual removal from the body.

10. A container comprising, a body, a frangible closure head sealed to the body to close an end of the same, the head comprising a flange engaging the internal surface of the body, and a flange engaging the external surface of the body, an imperiorate outer protective closure over said head having .flanges engaging against both flanges of the head, and means for removably frictionally holding the flanges of the outer closure in gripping cooperation with the flanges of the frangible head to secure the outer closure to the body for removal from the container independently of the frangible head.

MAHMUIN PAUL 

